JP5336905B2 - Temperature control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temperature regulator capable of performing the fast warm-up of a battery pack. <P>SOLUTION: The temperature regulator is used for adjusting a temperature of a battery pack 10 installed outside a vehicle compartment 111 of a fuel-cell vehicle 100, and comprises a casing 20 for storing the battery cell 10 therein, an air intake duct 30 through which air sucked from a surrounding part into the casing 20 passes, a discharging duct 51 through which air discharged from the casing 20 to the surrounding part passes, a heater 41 arranged at the air intake duct 30 to heat the air sucked into the casing 20, and a fan 61 for flowing air. An intake port 32 of the air intake duct 30 and a discharging port 52 of the discharging duct 51 are formed toward the rear side of the fuel-cell vehicle 100. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a temperature adjustment device that adjusts the temperature of an assembled battery.

  In recent years, development of fuel cell vehicles and hybrid vehicles has been promoted rapidly. Such a fuel cell vehicle or the like is equipped with a lithium ion type assembled battery and assists the motor by discharging the assembled battery during acceleration or charges the assembled battery with regenerative power during deceleration.

  However, the charge / discharge performance of such an assembled battery greatly depends on the temperature. For example, when the temperature of the assembled battery is low, a technique for warming up the assembled battery has been proposed in order to enhance the discharge performance (see Patent Document 1). ).

JP 2003-341448 A

Since a fuel cell vehicle equipped with such an assembled battery starts and travels even in a low temperature environment (for example, 0 ° C. or lower), further improvement and improvement of the assembled battery warm-up technology is desired.
Then, this invention makes it a subject to provide the temperature control apparatus which can warm up an assembled battery rapidly.

As means for solving the above-mentioned problems, the present invention provides a temperature adjusting device for adjusting the temperature of an assembled battery arranged outside a vehicle compartment of a vehicle, and a housing for housing the assembled battery therein, and an external device. An intake pipe through which air sucked into the casing flows, an exhaust pipe through which air exhausted from the casing to the outside flows, and air that is outside and in which air from the exhaust pipe stays A residence chamber; a heater that is provided in the intake pipe and that heats the air that is sucked into the housing; and a fan that allows air to flow therethrough; an intake port of the intake pipe and an exhaust of the exhaust pipe The mouth is a temperature adjusting device characterized by opening toward the rear of the vehicle in the air retention chamber .
In the temperature adjusting device, the lower part of the air retention chamber is blocked by an under cover attached to the frame of the vehicle.

According to such a temperature adjusting device, the heater heats the air sucked into the casing, and the warmed air warms up the assembled battery.
Since the intake port of the intake pipe and the exhaust port of the exhaust pipe are both open toward the rear of the vehicle, that is, the intake port and the exhaust port are in the same direction. Air that has been exhausted to the outside through the mouth is likely to be sucked into the intake pipe from the air inlet.

  Here, the air exhausted from the exhaust port is warmed by an assembled battery that self-heats by charging and discharging. Then, as described above, the warmed air passes through the intake port and the intake pipe, is heated by the heater, and then is supplied into the casing to warm up the assembled battery. In this manner, the air heated by the self-heating assembled battery and exhausted from the exhaust port is supplied again into the housing to warm the assembled battery, so that the assembled battery can be quickly warmed up.

  In addition, since the intake port of the intake pipe and the exhaust port of the exhaust pipe are opened toward the rear of the vehicle, for example, when the vehicle is traveling in a low temperature environment, the low-temperature traveling wind is And it is difficult to be introduced into the exhaust port. That is, the low-temperature traveling wind is not easily introduced into the casing, and the warm-up of the assembled battery is not delayed by the low-temperature traveling wind.

  The temperature adjusting device may further include a valve device that is provided in the exhaust pipe and whose opening degree is reduced when the assembled battery is warmed up.

According to such a temperature adjustment device, when the assembled battery is warmed up, the opening degree of the valve device becomes small, and air is hardly exhausted from the inside of the housing to the outside. That is, since the air is further heated by the assembled battery that self-heats in the housing and then exhausted to the outside, the temperature of the exhausted air becomes high.
And since this high temperature air is supplied in a housing | casing through an inlet port and intake piping, an assembled battery can be warmed up rapidly.

  In the temperature adjusting device, the fan is provided in the exhaust pipe, and reduces the flow rate of air exhausted from the inside of the housing to the outside when the assembled battery is warmed up.

According to such a temperature control device, when the assembled battery is warmed up, the fan reduces the flow rate of air exhausted from the inside of the housing to the outside.
Thus, the air is further heated by the assembled battery that self-heats in the housing and then exhausted to the outside, so that the temperature of the exhausted air becomes high. And since this high temperature air is supplied in a housing | casing through an inlet port and intake piping, an assembled battery can be warmed up rapidly.

  In the temperature control device, the heater has a lattice shape, and removes foreign substances accompanying the sucked air.

  According to such a temperature adjusting device, the foreign substances accompanying the sucked air can be removed by the lattice heater.

  In the temperature adjusting device, the intake pipe downstream of the heater is provided with a filter for removing foreign substances accompanying the intake air.

According to such a temperature adjusting device, the filter can remove foreign substances accompanying the sucked air.
In addition, it is preferable that the opening (pitch) of the filter is smaller than the opening of the grid heater.

  Further, in the temperature adjusting device, the fan controls a flow rate of air taken in when the assembled battery is cooled.

According to such a temperature adjusting device, when the assembled battery is cooled, the assembled battery can be suitably cooled by controlling the flow rate of the air taken in by the fan.
In addition, it is preferable that a fan increases the flow volume of the air inhaled, so that the temperature of an assembled battery becomes high.

  In the temperature adjusting device, the intake port is higher than the exhaust port.

  According to such a temperature adjusting device, since the intake port is higher than the exhaust port in the height direction, even if condensed water or the like is discharged from the exhaust port, the discharged condensed water Etc. does not enter the air intake. Further, since the intake port is arranged at a high position, rainwater or the like does not enter the intake port.

  ADVANTAGE OF THE INVENTION According to this invention, the temperature control apparatus which can warm up a assembled battery rapidly can be provided.

It is a side view of the fuel cell vehicle concerning this embodiment. It is the figure which expanded the side view of the fuel cell vehicle which concerns on this embodiment. It is a perspective view of the assembled battery apparatus which concerns on this embodiment. It is a disassembled perspective view of the assembled battery apparatus which concerns on this embodiment. It is the X1-X1 sectional view taken on the line of FIG. It is the X2-X2 sectional view taken on the line of FIG. It is the X3-X3 sectional view taken on the line of FIG. It is a flowchart which shows operation | movement of the assembled battery apparatus which concerns on this embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

≪Configuration of assembled battery device≫
As shown in FIG. 1, an assembled battery device 1 according to the present embodiment is mounted on a fuel cell vehicle 100 (vehicle) together with a fuel cell stack (not shown). The assembled battery device 1 is charged with surplus power generated by the fuel cell stack or regenerative power from the running motor during deceleration in accordance with a command from an ECU 70 (Electronic Control Unit) described later, or discharged during acceleration. The fuel cell stack is assisted by supplying the electric power to the motor.
In addition, charging / discharging of the assembled battery 10 is connected to the output terminal of the assembled battery 10, and is controlled by a power controller (DC / DC converter) (not shown) according to a command from the ECU 70.

  As shown in FIGS. 1 and 2, the interior of the fuel cell vehicle 100 includes a vehicle compartment 111 and a trunk room 112, a motor room 121, a center tunnel 122 and a tank room by a dashboard panel 101, a floor panel 102 and a trunk floor panel 103. 123. A motor and a transmission (not shown) for traveling are arranged in the motor chamber 121, a fuel cell stack (not shown) is arranged in the center tunnel 122, and a hydrogen tank is installed in the tank chamber 123. 124 is arranged.

The assembled battery device 1 (assembled battery 10) is disposed in the center tunnel 122 below the floor panel 102 below the rear seat (not shown), that is, outside the vehicle compartment 111.
Such an assembled battery device 1 incorporates a temperature adjustment device that adjusts the temperature of the assembled battery 10, and includes the assembled battery 10, the temperature sensor 12, the housing 20, and the intake duct 30 (intake piping). ), A heater 41, a filter 42, an exhaust duct 51 (exhaust piping), a fan 61, a butterfly valve 62 (valve device), and an ECU 70.

<Battery assembly>
The assembled battery 10 includes a plurality of unit cells 11, and the plurality of unit cells 11 are connected in series by a bus bar (not shown). The unit cell 11 is composed of, for example, a lithium ion type or nickel hydride type secondary battery, is chargeable / dischargeable, and its charge / discharge performance greatly depends on temperature. The unit cell 11 self-heats when charged and discharged.

The plurality of single cells 11 are arranged with a predetermined gap in the left-right direction (vehicle width direction) and the up-down direction (see FIG. 5). And the air which warms up or cools the cell 11 (assembled battery 10) flows through the said clearance gap.
4 and 5 show the cylindrical unit cell 11, the invention is not limited to this, and a rectangular unit cell 11 may be used. Moreover, you may change suitably the number of the cell 11 in the left-right direction and an up-down direction.

<Temperature sensor>
The temperature sensor 12 is a sensor that detects the temperature of the assembled battery 10, and in the present embodiment, the two temperature sensors 12, 12 are respectively attached to the appropriate unit cells 11, 11 constituting the assembled battery 10. (See FIG. 5).
Then, the temperature sensor 12 outputs the detected current temperature T11 of the assembled battery 10 (unit cell 11) to the ECU 70.
However, the number and position of the temperature sensors 12 are not limited to this, and may be changed as appropriate. For example, the temperature sensors 12 may be attached to the single cells 11. Moreover, the structure which estimates the temperature T11 of the assembled battery 10 based on the temperature which attaches the temperature sensor 12 out of the housing | casing 20 and is detected may be sufficient.

<Case>
The housing 20 is a battery box that protects the assembled battery 10 from water, dust, and the like by housing the assembled battery 10 therein, and has a flat box shape. And the housing | casing 20 is being fixed on the cross frame 130 of a cross-beam shape (refer FIG. 4).

  The sub-frame 130 is formed in a cross beam shape by two front and rear frames 131 and 131 extending in the front-rear direction and two cross members 132 and 132 joined to the front and rear frames 131 and 131. An under cover 133 is attached to the lower surface of the subframe 130, and the space surrounded by the front and rear frame 131, the cross member 132, the under cover 133 and the bottom panel 25 described later is discharged from the housing 20. It functions as an air exhaust passage 134 (see FIG. 5).

  The housing 20 includes an upper panel 21, two side panels 22 and 22, a front panel 23, a rear panel 24, and two bottom panels 25 and 25.

The side panels 22 and 22 constitute a left wall portion or a right wall portion of the housing 20, and each of the side panels 22 is formed with four air introduction holes 22 a through which air traveling into the housing 20 passes ( (See FIG. 4).
That is, the side panels 22 and 22 are disposed at both ends of the housing 20 in the vehicle width direction, and constitute opposing surfaces (left side surface and right side surface) of the housing 20. And the air which warms up / cools the assembled battery 10 is introduce | transduced in the housing | casing 20 from the air introduction hole 22a of this opposing side panel 22 (refer FIG. 5).

  The bottom panels 25, 25 constitute a bottom wall portion of the housing 20. The bottom panels 25 and 25 are arranged at a predetermined interval in the vehicle width direction, and between the bottom panels 25 and 25, the air in the casing 20 is exhausted to the exhaust passage 134 below the casing 20. This is an exhaust port 26 (see FIG. 5). In addition, the exhaust port 26 is arrange | positioned in the approximate position of the side panels 22 and 22 in the vehicle width direction.

<Intake duct>
The intake duct 30 constitutes an intake pipe through which air sucked into the housing 20 from the tank chamber 123 (external) flows. The intake duct 30 includes an intake portion 31 and a left branch portion 33 and a right branch portion 34 that are bifurcated at the downstream end of the intake portion 31 from upstream to downstream.
Note that the branch portion 35 that branches from the intake portion 31 to the left branch portion 33 and the right branch portion 34 has a substantially inverted T shape in a rear view (see FIGS. 3 and 6).

  The intake portion 31 extends substantially in the vertical direction, and an intake port 32 is formed at the upstream end thereof. The intake port 32 opens toward the rear of the vehicle. Thereby, for example, when the fuel cell vehicle 100 travels in a low temperature environment, when the assembled battery 10 is to be warmed up, low-temperature traveling wind is unlikely to flow into the intake port 32. It is supposed to be warmed up.

  Further, the intake port 32 is disposed at a position higher than an exhaust port 52 of an exhaust duct 51 described later in the height direction (vertical direction) (see FIG. 2). Thus, even if condensed water or the like is discharged from the exhaust port 52, the condensed water or the like does not enter the intake port 32. Further, since the intake port 32 is arranged at a high position, rainwater or the like does not enter.

  The left branch portion 33 is formed so as to extend from the downstream end of the intake portion 31 to the left and then forward, and is connected to the left side panel 22. The air branched to the left from the intake portion 31 is introduced into the left side of the housing 20 through the left branch portion 33 and the four air introduction holes 22a of the left side panel 22 in this order ( (See FIG. 5).

  The right branch portion 34 is formed so as to extend from the downstream end of the intake portion 31 to the right and then forward, and is connected to the right side panel 22. The air branched rightward from the intake portion 31 is introduced into the right side of the housing 20 through the right branch portion 34 and the four air introduction holes 22a of the right side panel 22 in this order ( (See FIG. 5).

<Heater>
The heater 41 is formed in a lattice shape so that air can pass through the heater 41 (see FIG. 3). The heater 41 is attached to the air inlet 32, and removes a slightly larger foreign object (for example, dead leaves) accompanying the intake air.

  Such a heater 41 is composed of a ceramic heater, a nichrome wire heater, or the like, and powers the assembled battery 10 and / or the fuel cell stack (not shown) and is ON / OFF controlled by the ECU 70. When the heater 41 is turned on, the air that is taken in is warmed, and the warmed air warms up the assembled battery 10.

<Filter>
The filter 42 removes minute foreign matters (dust, dust, etc.) accompanying the air to be sucked in, and has a substantially rectangular tube shape in the present embodiment. It arrange | positions in the branch part 35 which exhibits a character shape, ie, the downstream of the heater 41 (refer FIG. 3, FIG. 6).

  Such a filter 42 is formed from, for example, a nonwoven fabric, and the opening of the filter 42 is designed to be smaller than the opening of the grid heater 41. Then, after the air from the intake portion 31 flows into the hollow portion of the substantially rectangular tube-shaped filter 42 and then branches to change the flow direction to the left or right, the air passes through the peripheral wall portion of the filter 42. In addition, minute foreign matters such as dust and dust are removed (see FIG. 6).

  Below the filter 42, a lid 43 that is removed during maintenance of the filter 42 is detachably attached to the intake duct 30 (see FIG. 6). In addition, a recess 44 is formed at the center of the lid 43, and dust and condensed water removed by the filter 42 are accumulated in the recess 44.

<Exhaust duct>
The exhaust duct 51 constitutes an exhaust pipe through which air exhausted from the inside of the housing 20 to the tank chamber 123 (external) flows, and is disposed on the left side of the housing 20. It communicates with the lower exhaust passage 134 (see FIGS. 3 and 6).

  An exhaust port 52 of the exhaust duct 51 opens toward the rear of the vehicle, and air from the housing 20 is exhausted toward the rear (see FIGS. 2 and 3). Thus, similarly to the intake port 32 that opens toward the rear, for example, when the fuel cell vehicle 100 travels in a low-temperature environment, when the battery pack 10 should be warmed up, the low-temperature traveling wind is discharged from the exhaust port 52. It becomes difficult to flow into.

  Further, since the exhaust port 52 and the intake port 32 are opened rearward in the same direction, a part of the air heated by the assembled battery 10 and exhausted from the exhaust port 52 is discharged from the intake port 32. It is easy to be inhaled. Thereby, the waste heat of the assembled battery 10 is reused to warm up the assembled battery 10, and the assembled battery 10 is quickly warmed up.

<Fan>
The fan 61 generates air flow that becomes warm-up air or cooling air by operating, and is provided in the exhaust duct 51 (see FIGS. 5 and 7).
The fan 61 uses the assembled battery 10 and / or the fuel cell stack (not shown) as a power source, and the ECU 70 controls the ON / OFF control and the rotation speed (air flow rate).
In the present embodiment, the case where the fan 61 rotates at a constant rotation speed is illustrated.

<Barafly valve>
The butterfly valve 62 is provided in the exhaust duct 51 and downstream of the fan 61 (see FIG. 7).
The butterfly valve 62 is configured as a normally open type (normally open type) by a return spring (not shown), and its opening degree is controlled by a stepping motor (not shown) according to a command from the ECU 70.
And if the opening degree of the butterfly valve 62 becomes small, the air in the housing | casing 20 will become difficult to be exhausted outside from the exhaust duct 51 (housing | casing 20). That is, the flow rate of air exhausted from the exhaust duct 51 is reduced. That is, the flowing air is further heated by the assembled battery 10 in the housing 20 and then exhausted to the outside, so that the temperature of the exhausted air rises.

<ECU>
The ECU 70 is a control device that electronically controls the assembled battery device 1 and includes a CPU, a ROM, a RAM, various interfaces, an electronic circuit, and the like. According to a program stored therein, the heater 41 and the fan 61 and the butterfly valve 62 are controlled to execute various processes.

≪Operation and effect of battery pack device≫
Next, operations and effects of the battery pack apparatus 1 will be described with reference to FIG.
The assembled battery 10 is charged or discharged in accordance with a command from the ECU 70 and self-heats.

  In step S101, the ECU 70 determines whether or not the current temperature T11 of the assembled battery 10 is equal to or lower than the first temperature T1. The first temperature T1 is a temperature (for example, 0 ° C.) at which it is determined that warming up of the assembled battery 10 should be started in order to improve the charge / discharge characteristics of the assembled battery 10, and is obtained by a preliminary test or the like. It is remembered.

If it is determined that the current temperature T11 is equal to or lower than the first temperature T1 (S101 / Yes), it is determined that the assembled battery 10 needs to be warmed up, and the processing of the ECU 70 proceeds to step S102.
On the other hand, when it determines with the present temperature T11 not being 1st temperature T1 or less (S101 * No), it determines that it is not necessary to warm up the assembled battery 10, and the process of ECU70 progresses to step S103.

In step S <b> 102, the ECU 70 turns on the heater 41 and the fan 61 to reduce the opening of the butterfly valve 62.
Then, the air in the tank chamber 123 is sucked into the intake portion 31 from the intake port 32 while being heated by the heater 41. The warmed air is branched into the left branch portion 33 and the right branch portion 34 and then introduced into the housing 20 from the air introduction holes 22a of the left and right side panels 22 to warm the assembled battery 10. Thereafter, the air is exhausted from the housing 20 to the tank chamber 123 through the exhaust port 26, the exhaust passage 134, the exhaust duct 51, and the exhaust port 52.

Here, the air flowing through the housing 20 is warmed by the assembled battery 10 that self-heats. In addition, since the opening degree of the butterfly valve 62 is small, the air is not easily discharged from the housing 20, that is, the time for the air to flow through the housing 20 becomes long. As the flow rate of air exhausted to the air decreases, its temperature increases.
Here, the opening degree of the butterfly valve 62 is reduced and the flow rate of air is reduced. However, the rotational speed of the fan 61 may be lowered to reduce the flow rate of exhausted air.

Since both the exhaust port 52 and the intake port 32 are opened rearward in the tank chamber 123, a part of the high-temperature air exhausted from the exhaust port 52 is sucked from the intake port 32. Then, after being warmed by the heater 41, it is introduced into the housing 20, and the assembled battery 10 is warmed. In this way, a part of the warm air exhausted from the casing 20 is supplied again into the casing 20, so that the assembled battery 10 is quickly warmed up.
Therefore, it is preferable that the opening degree of the butterfly valve 62 is reduced or the heating amount (output) of the heater 41 is increased in order to quickly warm the assembled battery 10 as the temperature T11 of the assembled battery 10 and the outside air temperature are lowered. .

  Further, part of the high-temperature air exhausted from the exhaust port 52 stays in the tank chamber 123 and the center tunnel 122 around the housing 20. The assembled battery device 1 is kept warm by the air staying in the center tunnel 122 and the like, and even if the fuel cell vehicle 100 travels in a low temperature environment, the temperature does not decrease.

Thus, since the assembled battery 10 is warmed up quickly, the assembled battery 10 can be discharged at a high output. Therefore, for example, when the fuel cell vehicle 100 is started in a low temperature environment, even when the output (power generation performance) of the fuel cell stack is not sufficiently increased, the warm-up assembled battery 10 is discharged, thereby The battery stack can be assisted well, and the fuel cell vehicle 100 can travel according to the driver's intention.
Thereafter, the process of the ECU 70 returns to the start through a return.

  In step S103, the ECU 70 determines whether or not the current temperature T11 of the assembled battery 10 is equal to or higher than the second temperature T2. The second temperature T2 is a temperature (for example, 50 ° C.) at which it is determined that cooling of the assembled battery 10 should be started in order to prevent deterioration of the assembled battery 10 due to excessive temperature rise. Is stored in advance.

If it is determined that the current temperature T11 is equal to or higher than the second temperature T2 (S103 / Yes), it is determined that the assembled battery 10 needs to be cooled, and the process of the ECU 70 proceeds to step S105.
On the other hand, when it determines with the present temperature T11 not being 2nd temperature T2 or more (S103 * No), it determines with the assembled battery 10 need not be cooled, and the process of ECU70 progresses to step S104. In addition, when progressing to step 104, the temperature of the assembled battery 10 exists in the normal temperature range which can charge / discharge favorably, without the assembled battery 10 deteriorating.

In step S104, the ECU 70 turns off the heater 41 and the fan 61. Further, the ECU 70 fully opens the butterfly valve 62.
Thereafter, the processing of the ECU 70 proceeds to return.

In step S105, the ECU 70 turns off the heater 41 and turns on the fan 61. Further, the ECU 70 fully opens the butterfly valve 62. Then, the assembled battery 10 is quickly cooled by the air flowing through the housing 20.
In addition, it is preferable to increase the rotational speed of the fan 61 in order to cool the assembled battery 10 as soon as the temperature T11 of the assembled battery 10 increases.
Thereafter, the processing of the ECU 70 proceeds to return.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this, For example, it can change as follows in the range which does not deviate from the meaning of this invention.

  In the above-described embodiment, the configuration in which the heater 41 is provided in the intake port 32 is exemplified. However, for example, a configuration in which the heater 41 is provided in the middle of the intake portion 31 may be used.

  In the above-described embodiment, a configuration in which the assembled battery device 1 is mounted on the fuel cell vehicle 100 is illustrated, but a configuration in which the assembled battery device 1 is mounted on another vehicle, for example, a hybrid vehicle, a motorcycle, or a train may be used.

1 Battery assembly (temperature control device)
10 assembled battery 11 single cell 20 housing 30 intake duct (intake piping)
32 Inlet 41 Heater 42 Filter 51 Exhaust duct (Exhaust piping)
52 Exhaust port 61 Fan 62 Butterfly valve (valve device)
70 ECU (control means)
100 Fuel cell vehicle (vehicle)

Claims (8)

A temperature adjustment device for adjusting the temperature of an assembled battery disposed outside a vehicle compartment of a vehicle,
A housing for storing the assembled battery therein;
An intake pipe through which air sucked into the housing from outside flows;
An exhaust pipe through which air exhausted to the outside from the inside flows;
An outside air retention chamber in which air from the exhaust pipe is retained;
A heater that is provided in the intake pipe and heats the air taken into the housing;
With a fan to let air through,
With
The temperature adjusting device, wherein an intake port of the intake pipe and an exhaust port of the exhaust pipe are opened toward the rear of the vehicle in the air retention chamber .   The lower part of the air retention chamber is blocked by an under cover attached to the vehicle frame.
  The temperature adjusting device according to claim 1, wherein: The exhaust piping is provided, the temperature adjustment device according to claim 1 or claim 2, characterized in that the opening at the time of warm-up of the battery pack comprises a small valve device. The fan, the provided in an exhaust pipe, any one of the sets claims 1 to 3, characterized in that to reduce the flow rate of air to be exhausted to the outside from the housing during warm-up of the cell The temperature adjusting device described in 1. The temperature adjusting device according to any one of claims 1 to 4 , wherein the heater has a lattice shape and removes foreign substances accompanying the sucked air. The temperature adjusting device according to claim 5 , wherein the intake pipe downstream of the heater is provided with a filter that removes foreign substances accompanying the sucked air. The temperature adjusting device according to any one of claims 1 to 6 , wherein the fan controls a flow rate of air that is taken in when the assembled battery is cooled. The temperature adjustment device according to any one of claims 1 to 7 , wherein the intake port is positioned higher than the exhaust port.

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